Finisar Corporation September 25, 2005 Rev. C Page 1
Product Specification
2.125 Gb/s RoHS Compliant Short-Wavelength SFP Transceiver
FTLF8519P2xCL
PRODUCT FEATURES
Up to 2.125 Gb/s bi-directional
data links
Hot-pluggable SFP footprint
850nm Oxide VCSEL laser
transmitter
Duplex LC connector
RoHS Compliant and Lead-Free
Up to 500m on 50/125µm MMF,
300m on 62.5/125µm MMF
Metal enclosure, for lower EMI
Single 3.3V power supply
Low power dissipation
Commercial operating temperature
range: 0°C to 70°C
APPLICATIONS
1.25 Gb/s 1000Base-SX Ethernet
Dual Rate 1.063/2.125 Gb/s Fibre
Channel
Finisar’s FTLF8519P2xCL Small Form Factor Pluggable (SFP) transceivers are
compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA)1.
They are simultaneously compatible with Gigabit Ethernet as specified in IEEE Std
802.32 and Fibre Channel FC- PI-2 Rev. 7.03. They are RoHS compliant and lead-free
per Directive 2002/95/EC4 and Finisar Application Note AN-2038.
PRODUCT SELECTION
FTLF8519P2xCL
x W Wide Extraction Bail
B Narrow Extraction Bail
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 2
I. Pin Descriptions
Pin Symbol Name/Description Ref.
1 VEET Transmitter Ground (Common with Receiver Ground) 1
2 TFAULT Transmitter Fault. Not supported.
3 TDIS Transmitter Disable. Laser output disabled on high or open. 2
4 MOD_DEF(2) Module Definition 2. Data line for Serial ID. 3
5 MOD_DEF(1) Module Definition 1. Clock line for Serial ID. 3
6 MOD_DEF(0) Module Definition 0. Grounded within the module. 3
7 Rate Select No connection required
8 LOS Loss of Signal indication. Logic 0 indicates normal operation. 4
9 VEER Receiver Ground (Common with Transmitter Ground) 1
10 VEER Receiver Ground (Common with Transmitter Ground) 1
11 VEER Receiver Ground (Common with Transmitter Ground) 1
12 RD- Receiver Inverted DATA out. AC Coupled
13 RD+ Receiver Non-inverted DATA out. AC Coupled
14 VEER Receiver Ground (Common with Transmitter Ground) 1
15 VCCR Receiver Power Supply
16 VCCT Transmitter Power Supply
17 VEET Transmitter Ground (Common with Receiver Ground) 1
18 TD+ Transmitter Non-Inverted DATA in. AC Coupled.
19 TD- Transmitter Inverted DATA in. AC Coupled.
20 VEET Transmitter Ground (Common with Receiver Ground) 1
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
3. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V.
MOD_DEF(0) pulls line low to indicate module is plugged in.
4. LOS is open collector output. Should be pulled up with 4.7k – 10kohms on host board to a voltage
between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
VeeT
VeeT
VeeR
VeeR
TD-
TD+
RD+
RD-
VccT
VccR
VeeT
VeeR
TXFault
MOD-DEF(2)
MOD-DEF(1)
MOD-DEF(0)
Rate Select
LOS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Towards
ASIC
Towards
Bezel
TX Disable
VeeR
Diagram of Host Board Connector Block Pin Numbers and Names
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 3
II. Absolute Maximum Ratings
Parameter Symbol Min Typ Max Unit Ref.
Maximum Supply Voltage Vcc -0.5 4.0 V
Storage Temperature TS -40 85
°C
Case Operating Temperature TA 0 70
°C
Relative Humidity RH 0 85 % 1
III. Electrical Characteristics
(TA = 0 to 70 °
°°
°C, VCC = 3.0 to 3.6 Volts)
Parameter Symbol Min Typ Max Unit Ref.
Supply Voltage Vcc 3.0 3.6 V
Supply Current Icc 150 240 mA
Transmitter
Input differential impedance Rin 100 Ω 2
Single ended data input swing Vin,pp 250 1200 mV 3
Transmit Disable Voltage VD 2 Vcc V 4
Transmit Enable Voltage VEN Vee Vee+ 0.8 V
Receiver
Single ended data output swing Vout,pp 250 450 550 mV 5
Data output rise time tr 175 ps 6
Data output fall time tf 175 ps 6
Mask Margin 45%
LOS Fault VLOS fault 2 VccHOST V 7
LOS Normal VLOS norm Vee Vee+0.5 V 7
Power Supply Rejection PSR 100 mVpp 8
Deterministic Jitter Contribution RX ∆DJ 51.7 ps 9
Total Jitter Contribution RX ∆TJ <65 122.4 ps 10
Notes:
1. Non condensing.
2. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
3. We recommend <600mV for best EMI performance.
4. Or open circuit.
5. Into 100 ohms differential termination.
6. 20 – 80 %
7. LOS is an open collector output. Should be pulled up with 4.7k – 10kohms on the host board. Normal
operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.
8. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to
specified value applied through the recommended power supply filtering network.
9. Typical peak-to-peak jitter (=6*RMS width of Jitter).
10. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ
and ∆DJ.
11. If measured with TJ-free data input signal. In actual application, output TJ will be given by:
()()
22 DJTJDJTJDJDJTJ INININOUT ∆−∆+−+∆+=
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 4
IV. Optical Characteristics (TOP = 0 to 70 °
°°
°C, VCC = 3. 00 to 3.60 Volts)
Parameter Symbol Min Typ Max Unit Ref.
Transmitter
Output Opt. Pwr: 50 or 62.5 MMF POUT -9 -3 dBm 1
Optical Wavelength λ 830 860 nm
Spectral Width σ 0.85 nm
Optical Modulation Amplitude @
2.125 Gb/s
OMA 196 µW 2
Optical Modulation Amplitude @
1.0625 Gb/s
OMA 156 µW 2
Optical Rise/Fall Time tr/ tf 100 150 ps 3
Relative Intensity Noise RIN -120 dB/Hz
Deterministic Jitter Contribution TX ∆DJ 20 56.5 ps 4
Total Jitter Contribution TX ∆TJ <65 119 ps 5
Extinction Ratio @ 1.25 Gb/s ER 9 dB
Mask Margin 45%
Receiver
Receiver Sensitivity = 1.0625 Gb/s RxSENS -20 dBm 6
Receiver Sensitivity = 2.125 Gb/s RxSENS -18 dBm 6
Receiver Sensitivity = 1.25 Gb/s RxSENS -20 dBm 7
Stressed RX sens. =1.0625 Gb/s 0.055 mW 8
Stressed RX sens. =2.125 Gb/s 0.096 mW 8
Stressed RX sens. =1.25 Gb/s -13.5 dBm 9
Average Receiver Power RxMAX 0 dBm
Receiver Elec. 3 dB cutoff freq. 1500 MHz
Optical Center Wavelength λC 770 860 nm
Optical Return Loss 12 dB
LOS De-Assert LOSD -20 dBm
LOS Assert LOSA -30 dBm
LOS Hysteresis 0.5 dB
Notes:
1. Class 1 Laser Safety per FDA/CDRH, IEC, and EN60825-1 laser safety standards.
2. Equivalent extinction ratio specification for Fibre Channel. Allows smaller ER at higher average
power.
3. Unfiltered, 20-80%. Complies with FC 1x and 2x eye mask when filtered.
4. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ
and ∆DJ.
5. If measured with TJ-free data input signal. In actual application, output TJ will be given by:
()()
22 DJTJDJTJDJDJTJ INININOUT ∆−∆+−+∆+=
6. Specifications are for 50 micro-meter or 62.5 micro-meter fiber
7. As measured with 9dB extinction ratio.
8. Measured with conformance signals defined in FC-PI-2 Rev. 7.0 specifications.
9. Measured with conformance signals defined in IEEE 802.3 specifications.
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 5
V. General Specifications
Parameter Symbol Min Typ Max Units Ref.
Data Rate BR 1.062,
1.25,
2.125
Gb/sec 1
Bit Error Rate BER 10-12 4
Fiber Length on 50/125µm MMF L 550
300
m 2
3
Fiber Length on 62.5/125µm MMF L 300
150
m 2
3
Notes:
1. Gigabit Ethernet and 1x, 2x Fibre Channel compatible, per IEEE 802.3 and FC-PI-2 Rev. 7.0
respectively.
2. At 1.0625 Gb/s Fibre Channel and 1.25 Gb/s Gigabit Ethernet data rates.
3. At 2.125 Gb/s Fibre Channel data rate.
4. 2.125Gb/s with PRBS 27-1.
VI. Environmental Specifications
Finisar 850nm SFP transceivers have a commercial operating temperature range from
0°C to +70°C case temperature.
Parameter Symbol Min Typ Max Units Ref.
Case Operating Temperature Top 0 70 °C
Storage Temperature Tsto -40 85 °C
VII. Regulatory Compliance
Finisar transceivers are Class 1 Laser Products and comply with US FDA regulations.
These products are certified by TÜV and CSA to meet the Class 1 eye safety
requirements of EN (IEC) 60825 and the electrical safety requirements of
EN (IEC) 60950. Copies of certificates are available at Finisar Corporation upon request.
Copies of the referenced certificates are available at Finisar Corporation upon request.
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 6
X. Mechanical Specifications
Finisar’s Small Form Factor Pluggable (SFP) transceivers are compatible with the
dimensions defined by the SFP Multi-Sourcing Agreement (MSA).
FTLF8519P2BCL
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 7
FTLF8519P2WCL
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 8
XI. PCB Layout and Bezel Recommendations
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 9
FTLF8519P2xCL Pluggable SFP Product Specification – September 2005
Finisar Corporation September 25, 2005 Rev. C Page 10
XII. References
1. Small Form Factor Pluggable (SFP) Transceiver Multi-source Agreement (MSA).
September 14, 2000.
2. IEEE Std 802.3, 2002 Edition, Clause 38, PMD Type 1000BASE-SX.
IEEE Standards Department, 2002.
3. “Fibre Channel Draft Physical Interface Specification (FC-PI-2 Rev. 7.0)”. American
National Standard for Information Systems.
4. Directive 2002/95/EC of the European Council Parliament and of the Council, “on
the restriction of the use of certain hazardous substances in electrical and electronic
equipment.” January 27, 2003.
XIII. For More Information
Finisar Corporation
1308 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. 1-408-548-1000
Fax 1-408-541-6138
sales@finisar.com
www.finisar.com
